<script setup>
import { ref } from 'vue'
const message = ref('refmessage')
setTimeout(()=>{
   
    message.value = '响应式数据绑定更新后' 
   
},2000)
</script>

<template>
 <div>
  <h1>{{message}}</h1>
 </div>
</template>

<style scoped>
.read-the-docs {
  color: #888;
}
</style>
